Omega124
Challenging Fate
(Note: This only works if you bought Polynesia and on Terra, obviously)
PHMCASCOT is a unconventional strategy in order to create a strong civilization unhampered by enemy civilizations and their clumsy warfare. However, to do this, you are sacrificing what could be multiple turns in which you could be using for research and production. Thus, the Hail Mary. If it works, you'll be miles ahead. But if it doesn't, you'll be behind. Suggested options is no barbs, and keeping start bias is mandatory, but the rest are up to you
Starting out:
The first thing you should do is embark your starting settler onto the coastline, and start sailing. Do not turn unless you must, and keep the eye on the prize: the new world. Your starting Maori should accompany you. When you see the coastline, make sure its the New World. Use your Maori for scouting, then settle if safe.
Once you settle, scout ahead with your Maori. If no barbs is on, that should literally be the only unit you train. If barbs are not on, then build only a skeleton force; you won't need a huge army for quite a while.
Mid Game:
Once Honolulu has been established as a city, you should focus on expansion. Polynesia is one of the few civs that can be large and produce reasonable culture, so do so! Even if you aim for another victory, SPs may help you for whatever victory you're aiming for.
Don't be hasty when building cities, though. Besides barbs, there is no competition, so planning city locations is possible. However, with the scientific disadvantage you put on yourself, you should build cities regularly for the extra beakers. Do not waste money on an army for now. You will not need it.
First Contact:
Never try to make first contact yourself. Trust me, isolation is good in Civ 5. Let the AI come to you. Squeeze the few turns before the world goes to hell. Once the first civ comes, start building that army I told you to put off. Not doing so will result in your cities being attacked. You should also build a token ship, and sail back to the Old World. See the political position, look who has it and who doesn't. Don't just sign agreements to the first person who comes, for the rest of the world may just hate him or her.
If you want to go to domination and are behind or science, sign those RAs.
You'll need every beaker you can get
Late Game:
Treat the game now like a regular game of Civ, really.
PHMCASCOT is a unconventional strategy in order to create a strong civilization unhampered by enemy civilizations and their clumsy warfare. However, to do this, you are sacrificing what could be multiple turns in which you could be using for research and production. Thus, the Hail Mary. If it works, you'll be miles ahead. But if it doesn't, you'll be behind. Suggested options is no barbs, and keeping start bias is mandatory, but the rest are up to you
Starting out:
The first thing you should do is embark your starting settler onto the coastline, and start sailing. Do not turn unless you must, and keep the eye on the prize: the new world. Your starting Maori should accompany you. When you see the coastline, make sure its the New World. Use your Maori for scouting, then settle if safe.
Once you settle, scout ahead with your Maori. If no barbs is on, that should literally be the only unit you train. If barbs are not on, then build only a skeleton force; you won't need a huge army for quite a while.
Mid Game:
Once Honolulu has been established as a city, you should focus on expansion. Polynesia is one of the few civs that can be large and produce reasonable culture, so do so! Even if you aim for another victory, SPs may help you for whatever victory you're aiming for.
Don't be hasty when building cities, though. Besides barbs, there is no competition, so planning city locations is possible. However, with the scientific disadvantage you put on yourself, you should build cities regularly for the extra beakers. Do not waste money on an army for now. You will not need it.
First Contact:
Never try to make first contact yourself. Trust me, isolation is good in Civ 5. Let the AI come to you. Squeeze the few turns before the world goes to hell. Once the first civ comes, start building that army I told you to put off. Not doing so will result in your cities being attacked. You should also build a token ship, and sail back to the Old World. See the political position, look who has it and who doesn't. Don't just sign agreements to the first person who comes, for the rest of the world may just hate him or her.
If you want to go to domination and are behind or science, sign those RAs.
You'll need every beaker you can get
Late Game:
Treat the game now like a regular game of Civ, really.
I think I gave it about 145 turns and then abandoned the game (standard Terra map, standard time, Emperor level). It took me "only" 17 turns to find the New World, & a few more turns to decide where to build Honolulu. But there were very few luxury resources in my New World -- 2 or 3 elephants is all, pretty widely separated. I managed to build Samoa near one of them, and then quickly researched construction so I could build coloseums & circuses to keep the folks a little happy. I did find lots of goody huts and hit a couple for culture & a couple for population. Even so, by the time I abandoned the game I was totally last in tech, population, GNP, you name it; couldn't even afford to ally with the adjacent friendly maritime CS with pearls.
Managed to build The Pyramids, but was beat out on the Hanging Gardens (which is usually a make/break Wonder for me), Stonehenge, & The Oracle. I think I could have managed to get Notre Dame (another of my make/break Wonders) because I was only a few turns away from completing the education tech & Honolulu had good production by now.
Nearest neighbor was Babylon, keep trying to invade but was too weak, Arabia was stronger but had to go through Babylon to get to me. 
It works better on marathon so those 19 turns of doing nothing aren't so bad.
